US3500809A - Ignition arrangement for internal combustion engines - Google Patents

Ignition arrangement for internal combustion engines Download PDF

Info

Publication number
US3500809A
US3500809A US724794A US3500809DA US3500809A US 3500809 A US3500809 A US 3500809A US 724794 A US724794 A US 724794A US 3500809D A US3500809D A US 3500809DA US 3500809 A US3500809 A US 3500809A
Authority
US
United States
Prior art keywords
ignition
voltage
internal combustion
capacitor
arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US724794A
Other languages
English (en)
Inventor
Gerd Hohne
Gerhard Sohner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of US3500809A publication Critical patent/US3500809A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
    • F02P1/08—Layout of circuits
    • F02P1/086—Layout of circuits for generating sparks by discharging a capacitor into a coil circuit

Definitions

  • a capacitor stores the energy for firing the spark plugs during one portion of the operation cycle. This energy is supplied to the capacitor by a charging coil operating in conjunction with a movable magnetic system.
  • a semi-conductive control rectifier or thyristor discharges the energy from the capacitor in a controlled manner. The discharge from the capacitor is applied to the primary winding of an ignition transformer whose secondary winding is connected across the spark plug to be fired.
  • Both the charging coil and the ignition transformer have ferromagnetic cores magnetically linked with the movable magnetic system. The latter moves a series of permanent magnets past the ferromagnetic cores to influence them in an alternating manner.
  • Electron c circuit components are associated with the electronic switching element in the form of semiconductor rectifiers so as to assure reliable operation.
  • Ignition arrangements of the species of the present invention are used in cases where no battery is available to provide energy for the ignition arrangement.
  • a high voltage impulse with steep front or rising edge is realized in the secondary winding of the ignition transformer at the instant of ignition.
  • the spark plugs receive an electrical spark jump in a reliable manner even when the electrodes of the spark plugs are severely soiled.
  • the object of the present invention is achieved through the arrangement in which the charging coil as well as the ignition transformer, under the influence of a magnetic system are used for providing the voltage to the control electrode of the electronic switch.
  • the charging coil and the ignition transformer are each mounted on a ferromagnetic core which is alternately influenced through the magnetic system.
  • An ignition arrangement for firing spark plugs in internal combustion engines The energy for firing the spark plugs is stored within an ignition capacitor which is charged through a charging coil.
  • the latter is mounted on a ferromagnetic core and is connected to the ignition capacitor.
  • the capacitor is discharged by Way of a controllable electronic switch in the form of a semi-conductor controlled rectifier or a thyristor.
  • This electronic switching means provides for controlled discharge of the ignition capacitor.
  • the discharge from the capacitor, by way of the electronic switch is applied to the primary winding of an ignition transformer.
  • the secondary Winding of this transformer is connected to the spark plug to be fired.
  • the ignition transformer has a ferromagnetic core which is magnetically isolated from the ferromagnetic core upon which the charging coil is wound.
  • a movable magnetic system of permanent magnets moves through the magnetic circuit path of the charging coil and the ignition transformer so as to influence them in an alternate manner.
  • a control electronic switch 7 which is, in turn, connected to the primary winding 8 of an ignition transformer 9, by way of the circuit point b.
  • the circuit point or junction a is of positive potential.
  • the other end c of the primary winding 8 is connected to one end d of the secondary winding of the ignition transformer 9 and, at the same time, to the circuit junction e by way of a path 11.
  • the circuit junction e of the ignition capacitor 1 is of negative potential.
  • a spark plug 12 is connected across the terminals of the secondary winding 10 of the ignition transformer 9, through the coil terminals d and f.
  • the secondary winding of the ignition transformer 9 has a ferromagnetic core 13.
  • the charging coil 5 as well as the transformer 9 are mounted upon a mounting plate which is of non-magnetic material.
  • a mag netic system driven by the internal combustion engine, not shown, moves relative to the assembly of the mounting plate 14 and the charging coil with the ignition transformer 9.
  • the ignition transformer 9 is used for purposes of delivering the control voltage for the control electrode G of the electronic switch 7.
  • the charging coil and ignition transformer 9 are mounted on ferromagnetic cores 6 and 13 which are magnetically isolated from each other.
  • the ferromagnetic cores 6 and 13 are alternately influenced through the magnetic system 15.
  • a very simple embodiment is achieved, for example, through the use of the primary winding 8 of the ignition transformer 9 for purposes of generating the voltage for the control electrode G of the electronic switch 7.
  • the control electrode G leads to the terminal c of the primary winding 8 of the ignition transformer 9.
  • the terminal 0 also leads, by way of the circuit path 11, to the circuit junction or point e.
  • the control electrode G and the circuit path 11 is a limiting resistor 17, a connection 16 leading to the diode 18, and a switching element 19, connected to switch at a predetermined threshold value.
  • the switching element 19 may be avoided when this threshold value is sufficient for maintaining proper operation.
  • the switching element 19, can, for example, be in the form of a Zener diode which conducts at a predetermined voltage level.
  • the Zener diode may also be replaced, for example, by a nonlinear resistor or a voltage source so as to oppose the control voltage.
  • the switching element 19 may be in the form of a parallel combination of a resistor 20 and a capacitor 21 as shown by the dashed lines in the drawing.
  • This RC network comprises of resistor 20 and capacitor 21 provides a threshold voltage as a function of the rotational speed of the engine.
  • a resistor 22 Connected across the terminals G and K of the electronic switch 7 is a resistor 22.
  • the operation of the electronic switch 7 becomes more reliable when a capacitor 23 is connected across the resistor 22 as shown by the broken lines in the drawing. If, further a diode 18' is connected across a capacitor so that its cathode is coupled to the control electrode G the diode 18 in the circuit connection 16 may be omitted.
  • the magnetic system 15 has a movable disc 24 mounted upon a shaft 25 driven by the crank shaft of the combustion engine.
  • the movable disc 24 includes four permanent magnets 26, 27, 28 and 29.
  • the permanent magnets 26, 27, 28, and 29 are separated from each other by equal spaces x, and are moved past the ferromagnetic cores 6 and 13 through rotation of the disc 24.
  • the ferromagnetic cores 6 and 13 are dimensioned so that each one of its poles may lie in one of two neighboring spaces x.
  • the three magnets 27, 28 and 29 face the ferromagnetic core 6 and 13 with their north poles No.
  • the magnet 26, on the other hand, faces the ferromagnetic cores 6 and 13 with its south pole S.
  • the ignition transformer 9 may be provided with a short circuit winding 30 as shown by the broken lines in the drawing.
  • the switching element 19 with an associated threshold voltage, assures also that no positive undesirable oscillations reach a control electrode G of the electronic switch 7. Such noise signals or oscillations cannot exceed the threshold value.
  • the actual control pulse is made large in relation to the preestablished threshold voltage so that this control pulse is transmitted reliably by the switching element 19.
  • the ignition arrangement in accordance with the present invention has the particular advantage that the control voltage for the control electrode G of the electronic switch 7 rises faster with increased speed of the internal combustion engine. As a result the instant of ignition becomes automatically advanced. This is desirable in engines from the power consumption point of view. In order to prevent undesirable values associated with this advancing of the instant of ignition, it is advantageous to provide an element with the control electrode G of the electronic switch 7, which is associated with a threshold voltage dependent upon the speed of the engine.
  • the RC network comprised of capacitor 21 in parallel with the resistor is adapted for this purpose. In place of the capacitor 21 and the resistor 20, or in addition to these circuit elements, a short-circuit winding 30 may be provided on the ignition transformer 9.
  • the secondary winding of the ignition transformer 9 includes a single spark plug 12. It would be within the frame of the present invention, however, if the secondary winding would include a plurality of such spark plugs.
  • the ignition impulse in such a case is provided in proper sequence through the conventional distributor.
  • the magnetic system 15 can thereby be transported with corresponding speed or be structurally designed for this purpose.
  • a semiconductor controlled rectifier and, in particular a thyristor is chosen for the electronic switch 7.
  • vacuum tube elements or other semi-conductor elements may be used for this purpose.
  • control voltage for the electrode G of the electronic switch 7 be derived from the primary winding 8 of the ignition transformer 9. It is quite possible to obtain this voltage from a secondary winding 13, or an auxiliary winding (not shown). By providing the proper number of turns on the winding it is possible to realize the desired magnitude of a control voltage.
  • An ignition arrangement for an internal combustion engine comprising, in combination, spark plug means; ignition capacitor means for storing energy associated with the firing of said spark plug means; charging coll means on first ferromagnetic core means for charging said ignition capacitor means; magnetic means driven by said engine through the magnetic path of said charging coil means; controllable electronic switching means connected to said ignition capacitor means for providing a controlled discharge path for said ignition capacitor means during triggering; and ignition transformer means having primary and secondary windings on second ferromagnetic core means mounted in the path of said magnetic means, said primary winding being connected to said electronic switching means and thereby connected to said controlled discharge path of said capacitor means during said triggering of said electronic switching means and said secondary winding being connected to said spark plug means, whereby said magnetic means influences alternately the magnetic flux associated with said first and second ferromagnetic core means for inducing a charging voltage within said charging coil means and inducing a control voltage within said primary winding of said ignition transformer for controlling said controllable electronic switching means, said charging voltage and said control voltage being induced through relative motion between said magnetic
  • the ignition arrangement for an internal combustion engine as defined in claim 3 including means connected to said control element and providing a threshold voltage to said control element as a function of the speed of said engine.
  • the ignition arrangement for an internal combustion engine as defined in claim 5 including diode means connected to said control element.
  • the ignition arrangement for an internal combustion engine as defined in claim 9 including auxiliary capacitor means connected in parallel with said auxiliary resistor means.
  • said magnetic means comprises movable disc means; and permanent magnetic means mounted at the periphery of said movable disc means, said permanent magnetic means being moved through the magnetic path of said first and second ferromagnetic core means.
  • the ignition arrangement for an internal combustion engine as defined in claim 12 including short-circuit winding means wound upon said ignition transformer means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
US724794A 1967-05-09 1968-04-29 Ignition arrangement for internal combustion engines Expired - Lifetime US3500809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0092422 1967-05-09

Publications (1)

Publication Number Publication Date
US3500809A true US3500809A (en) 1970-03-17

Family

ID=6986386

Family Applications (1)

Application Number Title Priority Date Filing Date
US724794A Expired - Lifetime US3500809A (en) 1967-05-09 1968-04-29 Ignition arrangement for internal combustion engines

Country Status (9)

Country Link
US (1) US3500809A (pm)
AT (1) AT283822B (pm)
BE (1) BE714861A (pm)
CH (1) CH465325A (pm)
ES (1) ES353704A1 (pm)
FR (1) FR1562650A (pm)
GB (1) GB1152970A (pm)
NL (1) NL6806485A (pm)
SE (1) SE331395B (pm)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620201A (en) * 1969-10-07 1971-11-16 Glenn B Warren Solid state multispark ignition system
FR2117000A5 (pm) * 1970-07-07 1972-07-21 Bosch
US3703889A (en) * 1969-10-31 1972-11-28 Bosch Gmbh Robert Ignition arrangement for internal combustion engines
US3704701A (en) * 1969-12-19 1972-12-05 Gunter Struber Ignition arrangements for internal combustion engines
US3704700A (en) * 1970-01-20 1972-12-05 Bosch Gmbh Robert Ignition arrangement for internal combustion engines having an alternating current generator
US3765390A (en) * 1971-03-10 1973-10-16 Bendix Corp Solid state breakerless ignition system for internal combustion engines
US3809043A (en) * 1971-10-22 1974-05-07 Nippon Denso Co Contactless ignition system for internal combustion engines
US3826236A (en) * 1971-10-01 1974-07-30 Svenska Electromagneter Ignition system for internal combustion engines
US3864621A (en) * 1972-08-29 1975-02-04 Bosch Gmbh Robert Transistorized control circuit for magneto motor ignition systems
US3900016A (en) * 1973-03-16 1975-08-19 Bosch Gmbh Robert Capacitor discharge ignition system for an internal combustion engine
US3911887A (en) * 1974-02-19 1975-10-14 Phelon Co Inc Capacitor discharge ignition system
DE2518505A1 (de) * 1974-05-06 1975-11-20 Bendix Corp Elektrische impulse erzeugendes system, insbesondere fuer das zuendsystem einer brennkraftmaschine
US3941111A (en) * 1973-09-10 1976-03-02 Syncro Corporation Ignition system
US3941108A (en) * 1974-07-29 1976-03-02 Phillips John P Ignition booster
US3941110A (en) * 1971-12-28 1976-03-02 Yamaha Hatsudoki Kabushiki Kaisha Ignition system for internal combustion engines
US3942501A (en) * 1974-11-14 1976-03-09 Motorola, Inc. Timing circuit for flywheel ignition system
US3974815A (en) * 1974-02-06 1976-08-17 Kokusan Denki Co., Ltd. Signal source for use in a breakerless ignition system for an internal combustion engine
US3998198A (en) * 1975-04-21 1976-12-21 Outboard Marine Corporation Capacitor discharge ignition system with frequency operated speed limiting control
US4029998A (en) * 1975-03-03 1977-06-14 Mcculloch Corporation Capacitor discharge ignition circuit
US4036201A (en) * 1975-04-29 1977-07-19 R. E. Phelon Company, Inc. Single core condenser discharge ignition system
US4038951A (en) * 1972-11-09 1977-08-02 Gehap Gesellschaft Fur Handel Und Patentverwertung Mbh & Co. Kg Device for limiting the speed of internal-combustion engine
US4150652A (en) * 1974-12-09 1979-04-24 Nippondenso Co., Ltd. Contactless ignition system for internal combustion engine
US4169446A (en) * 1975-09-22 1979-10-02 Mcculloch Corporation CDI Method and system with in phase coils
US4228780A (en) * 1979-02-22 1980-10-21 Wabash, Inc. Capacitor discharge ignition system with timing control arrangement
US4276868A (en) * 1978-11-01 1981-07-07 Outboard Marine Corporation Capacitor discharge ignition system having automatic spark advance
US4385617A (en) * 1980-08-25 1983-05-31 Oppama Kogyo Kabushiki Kaisha Over-rotation preventing device for internal combustion engines
USRE31837E (en) * 1975-04-29 1985-02-26 R. E. Phelon Company, Inc. Single core condenser discharge ignition system
US4949696A (en) * 1988-05-20 1990-08-21 Prufrex-Electro-Apparatebau Capacitor ignition systems
US5855199A (en) * 1997-06-25 1999-01-05 R.E. Phelon Co., Inc. Discharge ignition apparatus for internal combustion engine having shut-off feature

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES500246A0 (es) * 1981-03-10 1982-05-01 Garrido Goig Florencio Mejoras en los procedimientos electronicos de encendido paravehiculos de dos o mas ruedas

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688101A (en) * 1950-08-08 1954-08-31 Noris Zund A G Ignition-lighting generator
US3186397A (en) * 1964-06-19 1965-06-01 Bendix Corp Electrical apparatus
US3326199A (en) * 1964-08-10 1967-06-20 Bosch Arma Corp Magneto ignition system for internal combustion engines and the like
US3358665A (en) * 1965-10-23 1967-12-19 Syncro Corp Ignition system
US3367314A (en) * 1964-09-16 1968-02-06 Honda Gijutsu Kenkyusho Kk Non-contact ignition device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688101A (en) * 1950-08-08 1954-08-31 Noris Zund A G Ignition-lighting generator
US3186397A (en) * 1964-06-19 1965-06-01 Bendix Corp Electrical apparatus
US3326199A (en) * 1964-08-10 1967-06-20 Bosch Arma Corp Magneto ignition system for internal combustion engines and the like
US3367314A (en) * 1964-09-16 1968-02-06 Honda Gijutsu Kenkyusho Kk Non-contact ignition device
US3358665A (en) * 1965-10-23 1967-12-19 Syncro Corp Ignition system

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620201A (en) * 1969-10-07 1971-11-16 Glenn B Warren Solid state multispark ignition system
US3703889A (en) * 1969-10-31 1972-11-28 Bosch Gmbh Robert Ignition arrangement for internal combustion engines
US3704701A (en) * 1969-12-19 1972-12-05 Gunter Struber Ignition arrangements for internal combustion engines
US3704700A (en) * 1970-01-20 1972-12-05 Bosch Gmbh Robert Ignition arrangement for internal combustion engines having an alternating current generator
FR2117000A5 (pm) * 1970-07-07 1972-07-21 Bosch
US3736914A (en) * 1970-07-07 1973-06-05 Bosch Gmbh Robert Electronic ignition system for an internal combustion engine
US3765390A (en) * 1971-03-10 1973-10-16 Bendix Corp Solid state breakerless ignition system for internal combustion engines
US3826236A (en) * 1971-10-01 1974-07-30 Svenska Electromagneter Ignition system for internal combustion engines
US3809043A (en) * 1971-10-22 1974-05-07 Nippon Denso Co Contactless ignition system for internal combustion engines
US3941110A (en) * 1971-12-28 1976-03-02 Yamaha Hatsudoki Kabushiki Kaisha Ignition system for internal combustion engines
US3864621A (en) * 1972-08-29 1975-02-04 Bosch Gmbh Robert Transistorized control circuit for magneto motor ignition systems
US4038951A (en) * 1972-11-09 1977-08-02 Gehap Gesellschaft Fur Handel Und Patentverwertung Mbh & Co. Kg Device for limiting the speed of internal-combustion engine
US3900016A (en) * 1973-03-16 1975-08-19 Bosch Gmbh Robert Capacitor discharge ignition system for an internal combustion engine
US3941111A (en) * 1973-09-10 1976-03-02 Syncro Corporation Ignition system
US3974815A (en) * 1974-02-06 1976-08-17 Kokusan Denki Co., Ltd. Signal source for use in a breakerless ignition system for an internal combustion engine
US3911887A (en) * 1974-02-19 1975-10-14 Phelon Co Inc Capacitor discharge ignition system
DE2518505A1 (de) * 1974-05-06 1975-11-20 Bendix Corp Elektrische impulse erzeugendes system, insbesondere fuer das zuendsystem einer brennkraftmaschine
US3952715A (en) * 1974-05-06 1976-04-27 The Bendix Corporation Variable and constant timing for breakerless ignition
US3941108A (en) * 1974-07-29 1976-03-02 Phillips John P Ignition booster
US3942501A (en) * 1974-11-14 1976-03-09 Motorola, Inc. Timing circuit for flywheel ignition system
US4150652A (en) * 1974-12-09 1979-04-24 Nippondenso Co., Ltd. Contactless ignition system for internal combustion engine
US4029998A (en) * 1975-03-03 1977-06-14 Mcculloch Corporation Capacitor discharge ignition circuit
US3998198A (en) * 1975-04-21 1976-12-21 Outboard Marine Corporation Capacitor discharge ignition system with frequency operated speed limiting control
US4036201A (en) * 1975-04-29 1977-07-19 R. E. Phelon Company, Inc. Single core condenser discharge ignition system
USRE31837E (en) * 1975-04-29 1985-02-26 R. E. Phelon Company, Inc. Single core condenser discharge ignition system
US4169446A (en) * 1975-09-22 1979-10-02 Mcculloch Corporation CDI Method and system with in phase coils
US4276868A (en) * 1978-11-01 1981-07-07 Outboard Marine Corporation Capacitor discharge ignition system having automatic spark advance
US4228780A (en) * 1979-02-22 1980-10-21 Wabash, Inc. Capacitor discharge ignition system with timing control arrangement
US4385617A (en) * 1980-08-25 1983-05-31 Oppama Kogyo Kabushiki Kaisha Over-rotation preventing device for internal combustion engines
US4949696A (en) * 1988-05-20 1990-08-21 Prufrex-Electro-Apparatebau Capacitor ignition systems
US5855199A (en) * 1997-06-25 1999-01-05 R.E. Phelon Co., Inc. Discharge ignition apparatus for internal combustion engine having shut-off feature

Also Published As

Publication number Publication date
BE714861A (pm) 1968-09-30
GB1152970A (en) 1969-05-21
NL6806485A (pm) 1968-11-11
ES353704A1 (es) 1969-10-16
AT283822B (de) 1970-08-25
FR1562650A (pm) 1969-04-04
CH465325A (de) 1968-11-15
SE331395B (pm) 1970-12-21

Similar Documents

Publication Publication Date Title
US3500809A (en) Ignition arrangement for internal combustion engines
US3598098A (en) Ignition arrangment for internal combustion engines
US3910247A (en) Method and apparatus for distributorless ignition
US3367314A (en) Non-contact ignition device
US3703889A (en) Ignition arrangement for internal combustion engines
US3398353A (en) Magneto systems
US3490426A (en) Ignition system
US3461851A (en) Ignition system and magneto therefor
US3678913A (en) Current generator and electronic ignition circuit
US3704701A (en) Ignition arrangements for internal combustion engines
US4538586A (en) Capacitive discharge ignition with long spark duration
US3504373A (en) Breakerless ignition system with magneto supply and transistor controls
US3964461A (en) Capacitor type magneto ignition system with diode-protected shutdown switch
US3747582A (en) Ignition system for multicylinder internal combustion engine
US3648675A (en) Ignition arrangements for internal combustion engines
US3553529A (en) Condenser discharge type ignition system with a magneto power supply
US4141331A (en) Breakerless capacitive discharge ignition system
US3864621A (en) Transistorized control circuit for magneto motor ignition systems
US3196313A (en) Ignition circuit with sustained spark
US3326199A (en) Magneto ignition system for internal combustion engines and the like
US3704700A (en) Ignition arrangement for internal combustion engines having an alternating current generator
US3692009A (en) Ignition arrangements for internal combustion engines
US5056481A (en) Magneto-semiconductor ignition system
US3791363A (en) Electronically controlled reversal-proof magneto ignition system
US3612023A (en) Ignition arrangement for internal combustion engines